Street-cleaning machine.



No- 830,490. I PATENTED SEPT. 11, 1906. 1130mm.

STREET CLEANING MACHINE.

APPLIOATION FILED 3.7. 1906.

WITNESSES: 73W INVENTOR WWK M v 1% 7% By (5T ATTORNEY THE NORRIS PITERScm, wnsumc'mu, n. z.

UNITED STATES PATENT oFFIoE.

Specification of Letters Patent.

Patented se t. 1 1, 1906.

Application fil d April 7, 1906. Serial No. 310,424.

T0 at whom it may concern:

Be it known that I, HORACE BORDEN, a citizen of the United States,residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inStreet-Cleaning Machines, of which the following is a specification.

The object of my invention is to provide a street-cleaning machine whichwill scrape accumulations of dirt and refuse from an uneven andirregular street-surface as well as from an even and regular surface.This object I attain by means of the mechanism illustrated in theaccompanying drawings, in which- Figure 1 is a side view of the machine.Fig. 2 is a top view of the same, showing a portion of it in dottedlines; and Fig. 3 is a plan View showing a variation in the arrangementof the scrapers.

Similar letters refer to several views.

The letter (1 represents the scrapers, con sisting of metallic blades ofsuitable width and length securely attached to rods 0, which rods arehinged to the draft-beam g, which beam is supportedby a wheel Z.

3' represents portions of the frame of the machine rigidly secured tothe beam v9 and extending rearwardly to near the scrapers a, wherecrossbars i and i are secured to them,

similar parts in the which cross-bars carry the guides h. The

tions j, as shown guides it serve to prevent lateral movement of therods 0, and the cross-bars i and i are a suitable distance apart toallow the necessary vertical movement of the scrapers a. The handles itare bolted to the frame porin Fig. l, and it is obvious that when thehandles it are raised the scrapers a are also raised. The scrapers a areshown with their edges overlapping; but this is not essential, thoughperhaps convenient.

It is obvious that the outer scrapers might be rigid, with no verticalmotion, and in that case the intermediate scrapers would accommodatethemselves to the unevenness of the street and attain the end desired;but it is deemed advisable to give each scraper an independent verticalmovement.

en the scrapers are arranged as shown in Fig. '2, the machine isespecially designed to clean the gutters of a street by being drawnalong the same by a draft-animal, a man guiding it by the handles anddumping the same when required. This operatlon puts the dirt in pilesconvenient to be shoveled into carts to be transported to the dump. Whenthe scrapers are arranged as shown in Fig. 3, the machine is designed toscrape the dirt from the whole width of the street into the gutter,ready to be scraped into piles by the machine. (Shown in Fig. 2.)

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. A street cleaning machine, having a series of scraping-blades, eachblade having an independent vertical movement; and means tosimultaneouslyraise said blades over an accumulation in front of them,substantially as described.

2. A street-cleaning machine, having a series of scraping-bladesoverlappingeach other, and each having an independent vertical movement;and means to raise said blades over an accumulation in front of them,substantially as described.

3. A street-cleaning machine, having a series of scraping-blades, amajority of which have an independent vertical movement, and means toraise said scraping-blades over an accumulation in front of them,substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses.

HORACE BORDEN.

